Filter



M. A. MENKE.

Patented Nov. 7, 1922.

mamas.

ATTORNEYS W/TA/ESSES 5635? Patented Nov. 7, 1922.

lenses MEINARD ALDYSIUS :MENKE, OE HAGEESTOWN, MARYLAND.

FILTER.

Application filed March 29, 1920. Serial No. 369,523.

To (LZZ whom it may concern:

Be it known that I, MEINALD itiiorsros Mann-E, a citizen of the United States, and a resident of Hagerstown, in the county of lVashington. and State 01": Maryland, have invented. a new and Improved Filter, of which the following is a full, clear, and. ex act description.

This invention relates to the improvements in filters, and more particularly to filters of the funnel type employing filtering paper therein, an object of the invention being to provide improved means for holding the filtering paper away from the surface of the funnel so as to enlarge or extend the filtering area of the paper and prevent sticking of the paperto the walls of the funnel.

l-leretoiore, when filterin paper has been positioned in a funnel, the wet paper has adhered or stuck to the sides or walls of the funnel and only the lower portion of the paper has had any filtering operation or function, and it is the purpose of my invention to maintain the liltering paper away from the surface of the funnel so that the paper can have a filtering surface or wall throughout its entire length in. the l'unnel.

With these and other objects in view the invention consists in certain novel features of construction, and combinations and arrangements of parts as will be more fully hereinafter described and poiutedout in the claims.

In the accompanying drawings lligure 1 is a view mainly in longitudinal. section illustrating my invention;

Figure 2 is an enlarged fragmentary View of one or the spacing devices.

1 represents a funnelhaving a conical or tapering upper end 2 and a lower restricted end 3 as is common in the art. at represents a paper filter which is located in the upper portion 2 of the funnel 1, and 5, 5 are my improved spacing devices which are located in the funnel and between the paper filter 4t and the walls of the funnel. These spacing devices 5 are made of wire or other suitable material longitudinally corrugated, as shown at 5, and provided at their upper ends with hooks 6 to engage over the upper edge of the funnel and hold the spacing de vices against longitudinal movement. 7

it is obvious that these spacing devices may be variously shaped and may be made of various naterials without departin from my invention.

The purpose of the spacing devices is to maintain the filtering paper away from the surface of the funnel so that the entire wall of the paper filter can be utilized for filtermg purposes allowing the liquid to pass through the same both at the sides of the filtering paper as well as atthe lower end thereof,

It is obvious that I might resort to varicos other forms of spacing means to main tam the paper away from the funnel and hence I do not limit myself to the precise construction set forth, but consider myself at liberty to malre such changes and alterations as fairly fall within the spirit and scope of the appended claims.

I claim:

1. The combination with a funnel and filtering paper in the funnel, of a plurality of members suspended from the upper edge 01": the funnel, and spacing the filtering paper from the inner wall of the funnel.

2. The combination with a funnel and liltering paper in the funnel, of longitudinally corrugated -wire members suspended from the upper edge of the funnel, and spacing the filtering paper from the inner walls of the funnel 3. The combination with a funnel, and filtering paper in the funnel, oi spacing devices located between the filtering paper and the funnel and holdin the filtering paper away from the surface or wall of the funnel, said spacingdevices comprising longitudinally corrugated members and hooks on the upper ends of said members engaging over the upper edge of the funnel.

MEINARD ALOYSIUS MENKE. 

